Results 31 to 40 of about 4,919,113 (388)

Young children's perspectives of time: New directions for co‐constructing understandings of quality in ECEC

British Educational Research Journal, EarlyView., 2023
Abstract Children's relationship with time in preschools is an under‐researched area. Young children rarely know how to measure time using a clock, but their experiences of time may contribute to understanding children's well‐being and debates about quality in preschools.
Kristín Dýrfjörð, Anna Magnea Hreinsdóttir, Adrijana Visnjic‐Jevtic, Alison Clark   +3 more
wiley   +1 more source

Lumped cluster analysis for understanding spatial and temporal patterns of groundwater geochemistry and hierarchically nested flow systems

地质科技通报, 2022
Hydrogeochemical tracing is an important tool to identify groundwater flow systems.However, the complexity of regional hierarchically nested groundwater flow systems makes it more difficult to explain chemical compositions of groundwater.This study takes
Shu Li, Jiaxue Yang, Xiaoqian Li, Jun Zhang, Guofang Pan   +4 more
doaj   +1 more source

Functional Flows in Groundwater-Influenced Streams: Application of the California Environmental Flows Framework to Determine Ecological Flow Needs

Frontiers in Environmental Science, 2022
Environmental flows, or the practice of allocating water in river systems for ecological purposes, is a leading strategy for conserving aquatic species and improving river health.
Sarah M. Yarnell, Ann Willis, Alyssa Obester, Ryan A. Peek, Robert A. Lusardi, Robert A. Lusardi, Julie Zimmerman, Theodore E. Grantham, Eric D. Stein   +8 more
doaj   +1 more source

Applying rare earth elements, Uranium, and 87Sr/86Sr to disentangle structurally forced confluence of regional groundwater resources: The case of the Lower Yarmouk Gorge [PDF]

, 2019
The conjoint discussion of tectonic features, correlations of element concentrations, δ18O, δD, and 87Sr/86Sr of groundwater leads to new insight into sources of groundwater, their flow patterns, and salinization in the Yarmouk Basin.
Al-Raggad, Marwan, Magri, Fabien, Möller, Peter, Rosenthal, Eliahu, Rödiger, Tino, Shalev, Eyal, Siebert, Christian   +6 more
core   +1 more source

Active Layer Groundwater Flow: The Interrelated Effects of Stratigraphy, Thaw, and Topography

Water Resources Research, 2019
The external drivers and internal controls of groundwater flow in the thawed “active layer” above permafrost are poorly constrained because they are dynamic and spatially variable.
Michael T. O'Connor, M. Cardenas, B. Neilson, K. Nicholaides, G. Kling   +4 more
semanticscholar   +1 more source

Regional groundwater flow pattern in Beishan, Hexi Corridor and Qilian Mountain

地质科技通报, 2022
Groundwater flow in mountainous areas is controlled by climate conditions, topography, geological structure, and other factors.Due to the restrictions such as data acquisition, the groundwater flow pattern and control mechanism in mountainous areas are ...
Yanhui Dong, Yunmei Fu, Liheng Wang, Ju Wang, Qian Zhang, Zihua Zong, Zhichao Zhou   +6 more
doaj   +1 more source

Global Land Surface Modeling Including Lateral Groundwater Flow

Journal of Advances in Modeling Earth Systems, 2018
The groundwater system is an essential part of Earth's systems. However, most current land surface models (LSMs) for climate modeling do not explicitly account for the lateral groundwater flow process.
Yujin Zeng, Zhenghui Xie, Shuang Liu, Jinbo Xie, Binghao Jia, Peihua Qin, Junqiang Gao   +6 more
semanticscholar   +1 more source

Dissolved noble gases and stable isotopes as tracers of preferential fluid flow along faults in the Lower Rhine Embayment, Germany [PDF]

, 2015
Groundwater in shallow unconsolidated sedimentary aquifers close to the Bornheim fault in the Lower Rhine Embayment (LRE), Germany, has relatively low δ2H and δ18O values in comparison to regional modern groundwater recharge, and 4He concentrations up to
A Mayer, A Schäfer, A Schäfer, AL Flint, B Marty, B Marty, BJ Mailloux, C Cassiat, CAJ Appelo, CM Bethke, D Wiprut, DK Solomon, DL Egholm, DN Dewhurst, E Griesshaber, ER Oxburgh, F Peeters, GC Rawling, H Hager, HA Kemna, J Lippmann, J Lippmann, J Lippmann-Pipke, JC Poole, JN Andrews, JR Fulljames, JT Kulongoski, JT Kulongoski, K. M. Hiscock, L Ma, L. P. Gumm, M Bickle, M Stute, M Stute, MA Chan, MC Castro, MC Castro, MC Castro, MC Geluk, N. Cremer, P. F. Dennis, PA Ziegler, R Kipfer, R Vaikmäe, S. Simon, SJ Roberts, SMV Gilfillan, T Torgersen, T Torgersen, T Torgersen, T Torgersen, T Wiersberg, U Beyerle, V Lavastre, V. F. Bense, VF Bense, VF Bense, VF Bense, VF Bense, VF Bense, W Aeschbach-Hertig, W Boenigk, WP Gardner, Y Sano, YV Dublyansky, Z Zhou   +65 more
core   +1 more source

Groundwater Flow and Exchange Across the Land Surface Explain Carbon Export Patterns in Continuous Permafrost Watersheds

Geophysical Research Letters, 2018
Groundwater flow regimes in the seasonally thawed soils in areas of continuous permafrost are relatively unknown despite their potential role in delivering water, carbon, and nutrients to streams.
B. Neilson, M. Bayani Cardenas, Michael T. O'Connor, M. Rasmussen, T. King, G. W. Kling   +5 more
semanticscholar   +1 more source

Study of the sustainability of a ground source heat pump system by considering groundwater flow and intermittent operation strategies

Energy Exploration & Exploitation, 2019
In this study, the operation of a ground source heat pump system was investigated over a 25-year period with careful attention paid to the effects of groundwater flow and intermittent operation strategies.
Wanli Wang, Jin Luo, Guiling Wang, Xi Zhu, Guiyi Liu   +4 more
doaj   +1 more source